June 2006, Rome-Migratingwild birds have playedandwilllikely continue to play arole in transporting highly pathogenic avian influenza (HPAI) virus, or bird flu, over long distances.
Researchers at Clemson University in South Carolina and Taylor University in Indiana earlier this year analyzed records of bird sightings dating to 1880 and discovered that ruby-throated hummingbirds are migrating to North America as many as 18 days earlier than decades ago.